John W. Walker

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Pueblo, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Photoacoustic instrument for measuring particles in a gas
- Patent number 6,662,627
- Issue date Dec 16, 2003
- Desert Research Institute
- William Patrick Arnott
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Photoacoustic instrument for measuring particles in a gas
- Publication number 20020194897
- Publication date Dec 26, 2002
- William Patrick Arnott
- G01 - MEASURING TESTING